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67759-68-6

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67759-68-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67759-68-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,5 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 67759-68:
(7*6)+(6*7)+(5*7)+(4*5)+(3*9)+(2*6)+(1*8)=186
186 % 10 = 6
So 67759-68-6 is a valid CAS Registry Number.

67759-68-6Relevant articles and documents

LiBr-Catalyzed C3-Disulfuration between Indole and N-Dithiophthalimide

Li, Wangyu,Pan, Yuanjiang,Shi, Keqiang,Wang, Dungai

, (2022/02/07)

A simple, green halide-catalyzed protocol for disulfuration of indole derivatives with N-dithiophthalimides has been developed. This C-H disulfide reaction proceeded smoothly at room temperature with economical LiBr as catalyst, providing an effective method for the synthesis of novel unsymmetrical disulfides. A series of 3-dithioindole derivatives were obtained in high yields with good functional group tolerance; moreover, the wide scope of Harpp reagents (aryl, benzyl, primary, secondary, tertiary) confirmed the practicability of this approach.

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